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*
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// Portions Copyright [2019-2021] [Payara Foundation and/or its affiliates]
package com.sun.enterprise.v3.admin;
import com.sun.enterprise.admin.util.ClusterOperationUtil;
import com.sun.enterprise.config.serverbeans.*;
import com.sun.enterprise.util.StringUtils;
import org.glassfish.api.admin.AccessRequired.AccessCheck;
import static com.sun.enterprise.util.StringUtils.ok;
import com.sun.enterprise.admin.report.ActionReporter;
import com.sun.enterprise.admin.report.PlainTextActionReporter;
import com.sun.enterprise.admin.report.PropsFileActionReporter;
import java.lang.reflect.Proxy;
import java.util.*;
import org.glassfish.api.ActionReport;
import org.glassfish.api.admin.*;
import org.glassfish.external.statistics.Statistic;
import org.glassfish.external.statistics.Stats;
import org.glassfish.external.statistics.impl.StatisticImpl;
import org.glassfish.internal.api.*;
import org.jvnet.hk2.annotations.Optional;
import org.jvnet.hk2.annotations.Service;
import static org.glassfish.api.ActionReport.ExitCode.FAILURE;
import static org.glassfish.api.ActionReport.ExitCode.SUCCESS;
import org.glassfish.api.admin.AdminCommandContext;
import org.glassfish.flashlight.MonitoringRuntimeDataRegistry;
import org.glassfish.hk2.api.PerLookup;
import org.glassfish.hk2.api.ServiceLocator;
import jakarta.inject.Inject;
import static com.sun.enterprise.util.SystemPropertyConstants.MONDOT;
import static com.sun.enterprise.util.SystemPropertyConstants.SLASH;
import java.io.ByteArrayOutputStream;
import java.util.Map;
/**
*
* @author Byron Nevins First breathed life on November 6, 2010 The copyright
* says 1997 because one method in here has code moved verbatim from
* GetCommand.java which started life in 1997
*
* Note: what do you suppose is the worst possible name for a TreeNode class?
* Correct! TreeNode! Clashing names is why we have to explicitly use this
* ghastly name: org.glassfish.flashlight.datatree.TreeNode all over the
* place...
*/
@Service(name = "MonitoringReporter")
@PerLookup
@ExecuteOn({RuntimeType.DAS, RuntimeType.INSTANCE})
public class MonitoringReporter extends V2DottedNameSupport {
private final TreeMap nodeTreeToProcess = new TreeMap(); // used for get
private List nodeListToProcess =
new ArrayList(); // used for list
public enum OutputType {
GET, LIST
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("\nPattern=[").append(pattern).append("]").append('\n');
if (!targets.isEmpty()) {
for (Server server : targets) {
if (server != null)
sb.append("Server=[").append(server.getName()).append("]").append('\n');
}
}
else
sb.append("No Targets");
return sb.toString();
}
///////////////////////////////////////////////////////////////////////
//////////////////////// The API Methods ///////////////////////////
///////////////////////////////////////////////////////////////////////
public void prepareGet(AdminCommandContext c, String arg, Boolean data) {
aggregateDataOnly = data;
prepare(c, arg, OutputType.GET);
}
public Collection getAccessChecksForGet() {
final Collection accessChecks = new ArrayList();
for (Object obj : nodeTreeToProcess.keySet()) {
final String name = obj.toString().replace('.', '/');
accessChecks.add(new AccessCheck(sanitizeResourceName(name), "read"));
}
return accessChecks;
}
public Collection getAccessChecksForList() {
final Collection accessChecks = new ArrayList();
for (org.glassfish.flashlight.datatree.TreeNode tn1 : nodeListToProcess) {
/*
* doList discards nodes that do not have children, but we
* include them here in building the access checks
* because the user needs read access to the node
* in order to find out that it does or does not have children.
*/
String name = tn1.getCompletePathName().replace('.', '/');
accessChecks.add(new AccessCheck(sanitizeResourceName(name), "read"));
}
return accessChecks;
}
private String sanitizeResourceName(final String resourceName) {
return StringUtils.replace(resourceName, "[", "_ARRAY_");
}
public void prepareList(AdminCommandContext c, String arg) {
prepare(c, arg, OutputType.LIST);
}
public void execute() {
// TODO remove? make it an exception???
if (hasError())
return;
runLocally();
runRemotely();
if (targetIsMultiInstanceCluster && isInstanceRunning()) {
runAggregate();
}
}
private boolean isInstanceRunning() {
boolean rs = false;
int num = 0;
List allServers = targetService.getAllInstances();
for (Server server : allServers) {
if (server.isRunning()) {
num++;
}
}
if (num >= 2)
rs = true;
return rs;
}
private void runAggregate() {
List list = getOutputLines();
ActionReport aggregateReporter = null;
if (aggregateDataOnly) {
plainReporter = new PlainTextActionReporter();
aggregateReporter = plainReporter.addSubActionsReport();
}
else
aggregateReporter = reporter.addSubActionsReport();
setClusterInfo(aggregateReporter, list);
if (aggregateDataOnly) {
reporter = plainReporter;
context.setActionReport(plainReporter);
}
}
private List getOutputLines() {
List list = null;
try {
ByteArrayOutputStream os = new ByteArrayOutputStream();
reporter.writeReport(os);
String outputMessage = os.toString();
String lines[] = outputMessage.split("\\n");
list = Arrays.asList(lines);
}
catch (Exception e) {
}
return list;
}
private ArrayList getKeyValuePair(String str, String instanceName) {
ArrayList list = new ArrayList(2);
String key = null;
String value = null;
if (str != null) {
key = str.substring(0, str.lastIndexOf('='));
key = (key.substring(instanceName.length() + 1)).trim();
value = (str.substring(str.lastIndexOf('=') + 1, str.length())).trim();
}
list.add(0, key);
list.add(1, value);
return list;
}
private void setClusterInfo(ActionReport aggregateReporter, List list) {
List data = new ArrayList(targets.size());
int i;
for (i = 0; i < targets.size(); i++) {
data.add(new HashMap());
}
HashMap clusterInfo = new HashMap();
int instanceCount = 0;
for (Server server : targets) {
String instanceName = server.getName();
Map instanceMap = data.get(instanceCount);
String key = null;
for (String str : list) {
if (str.contains(instanceName) && str.contains("-count =")) {
ArrayList kv = getKeyValuePair(str, instanceName);
key = (String) kv.get(0);
instanceMap.put((String) kv.get(0), kv.get(1));
}
if (key != null) {
String desc = key.substring(0, key.indexOf("-count")) + "-description";
if (str.contains(desc)) {
ArrayList kv = getKeyValuePair(str, instanceName);
clusterInfo.put((String) kv.get(0), kv.get(1));
}
String lastSampleTime = key.substring(0, key.indexOf("-count")) + "-lastsampletime";
if (str.contains(lastSampleTime)) {
ArrayList kv = getKeyValuePair(str, instanceName);
clusterInfo.put(instanceName + "." + (String) kv.get(0), kv.get(1));
key = null;
}
}
}
instanceCount++;
}
List allServers = targetService.getAllInstances();
String instanceListStr = "";
i = 0;
for (Server server : allServers) {
if (server.isRunning()) {
if (i == 0)
instanceListStr = server.getName();
else
instanceListStr = instanceListStr + ", " + server.getName();
i++;
}
}
aggregateReporter.appendMessage("\nComputed Aggregate Data for " + i + " instances: " + instanceListStr + " in cluster " + targetName + " :\n");
boolean noData = true;
HashMap h = data.get(0);
Iterator it = h.keySet().iterator();
while (it.hasNext()) {
int total = 0, max = 0, min = 0, index = 0;
float avg = 0;
int[] values = new int[data.size()];
boolean flag = false;
String s = (String) it.next();
for (HashMap hm : data) {
String tmp = (String) hm.get(s);
// if tmp is null then the string is not available in all the instances, so not required to add this in the cluster information
if (tmp == null) {
flag = true;
break;
}
else {
int count = Integer.parseInt(tmp);
values[index++] = count;
total = total + count;
}
}
if (!flag) {
noData = false;
Arrays.sort(values);
min = values[0];
max = values[values.length - 1];
avg = (float) total / (float) data.size();
String descKey = s.substring(0, s.length() - 5) + "description";
aggregateReporter.appendMessage(targetName + "." + s + "-total = " + total + "\n");
aggregateReporter.appendMessage(targetName + "." + s + "-avg = " + avg + "\n");
aggregateReporter.appendMessage(targetName + "." + s + "-max = " + max + "\n");
aggregateReporter.appendMessage(targetName + "." + s + "-min = " + min + "\n");
aggregateReporter.appendMessage(targetName + "." + descKey + " = " + clusterInfo.get(descKey) + "\n");
String lastSampleTimeKey = s.substring(0, s.length() - 5) + "lastsampletime";
long sampletime = getLastSampleTime(clusterInfo, lastSampleTimeKey, data.size());
aggregateReporter.appendMessage(targetName + "." + lastSampleTimeKey + " = " + sampletime + "\n");
}
}
if (noData) {
aggregateReporter.appendMessage("No aggregated cluster data to report\n");
}
}
private long getLastSampleTime(HashMap clusterInfo, String lastSampleTimeKey, int numofInstances) {
long[] values = new long[numofInstances];
int index = 0;
for (Map.Entry e : clusterInfo.entrySet()) {
String key = (String) e.getKey();
String value = (String) e.getValue();
if (key.contains(lastSampleTimeKey)) {
values[index++] = Long.parseLong(value);
}
}
Arrays.sort(values);
return values[values.length - 1];
}
///////////////////////////////////////////////////////////////////////
//////////////////////// ALL PRIVATE BELOW ///////////////////////////
///////////////////////////////////////////////////////////////////////
private void prepare(AdminCommandContext c, String arg, OutputType type) {
outputType = type;
context = c;
prepareReporter();
// DAS runs the show on this command. If we are running in an
// instance -- that means we should call runLocally() AND it also
// means that the pattern is already perfect!
if (isDas())
prepareDas(arg);
else
prepareInstance(arg);
prepareNodesToProcess();
}
/**
* The stock ActionReport we get is too inefficient. Replace it with
* PlainText note that we might be called with HTML or XML or JSON or
* others!
*/
private void prepareReporter() {
reporter = (ActionReporter) context.getActionReport();
if (reporter instanceof PlainTextActionReporter) {
// already setup correctly - don't change it!!
plainReporter = (PlainTextActionReporter) reporter;
}
else if (reporter instanceof PropsFileActionReporter) {
plainReporter = new PlainTextActionReporter();
reporter = plainReporter;
context.setActionReport(plainReporter);
}
else {
plainReporter = null;
}
}
private void prepareDas(String arg) {
// TODO throw an exception if any errors????
try {
setSuccess();
userarg = arg;
if (!validate()) {
return;
}
}
catch (Exception e) {
setError(Strings.get("admin.get.monitoring.unknown", e.getMessage()));
reporter.setFailureCause(e);
}
}
private void prepareInstance(String arg) {
// TODO throw an exception if any errors!
pattern = arg;
}
// mostly just copied over from old "get" implementation
// That's why it is excruciatingly unreadable...
private void prepareNodesToProcess() {
// don't run if this is DAS **and** DAS is not in the server list.
// otherwise we are in an instance and definitely want to run!
if (isDas() && !dasIsInList())
return;
// say the pattern is "something" -->
// we want "server.something" for DAS and "i1.server.something" for i1
// Yes -- this is difficult to get perfect!!! What if user entered
//"server.something"?
String localPattern = prependServerDot(pattern);
org.glassfish.flashlight.datatree.TreeNode tn = datareg.get(serverEnv.getInstanceName());
if (tn == null) {
return;
}
List ltn = tn.getNodes(localPattern);
boolean singleStat = false;
if (ltn == null || ltn.isEmpty()) {
org.glassfish.flashlight.datatree.TreeNode parent = tn.getPossibleParentNode(localPattern);
if (parent != null) {
ltn = new ArrayList(1);
ltn.add(parent);
singleStat = true;
}
}
if (!singleStat) {
localPattern = null; // signal to method call below. localPattern was already used above...
}
if (outputType == OutputType.GET) {
prepareNodeTreeToProcess(localPattern, ltn);
}
else if (outputType == OutputType.LIST) {
nodeListToProcess = ltn;
}
}
private void runLocally() {
// don't run if this is DAS **and** DAS is not in the server list.
// otherwise we are in an instance and definitely want to run!
if (isDas() && !dasIsInList()) {
return;
}
if (outputType == OutputType.GET) {
doGet();
}
else if (outputType == OutputType.LIST) {
doList();
}
if (plainReporter != null) {
plainReporter.appendMessage(cliOutput.toString());
}
}
private void prepareNodeTreeToProcess(final String pattern, final List ltn) {
for (org.glassfish.flashlight.datatree.TreeNode tn1 : sortTreeNodesByCompletePathName(ltn)) {
if (!tn1.hasChildNodes()) {
insertNameValuePairs(nodeTreeToProcess, tn1, pattern);
}
}
}
// Byron Nevins -- copied from original implementation
private void doGet() {
ActionReport.MessagePart topPart = reporter.getTopMessagePart();
Iterator it = nodeTreeToProcess.keySet().iterator();
while (it.hasNext()) {
Object obj = it.next();
String line = obj.toString();
line = line.replace(SLASH, "/") + " = " + nodeTreeToProcess.get(obj);
if (plainReporter != null)
cliOutput.append(line).append('\n');
else {
ActionReport.MessagePart part = topPart.addChild();
part.setMessage(line);
}
}
setSuccess();
}
private void doList() {
// list means only print things that have children. Don't print the children.
ActionReport.MessagePart topPart = reporter.getTopMessagePart();
for (org.glassfish.flashlight.datatree.TreeNode tn1 : nodeListToProcess) {
if (tn1.hasChildNodes()) {
String line = tn1.getCompletePathName();
if (plainReporter != null)
cliOutput.append(line).append('\n');
else {
ActionReport.MessagePart part = topPart.addChild();
part.setMessage(line);
}
}
}
setSuccess();
}
/**
* This can be a bit confusing. It is sort of like a recursive call.
* GetCommand will be called on the instance. BUT -- the pattern arg will
* just have the actual pattern -- the target name will NOT be in there! So
* "runLocally" will be called on the instance. this method will ONLY run on
* DAS (guaranteed!)
*/
private void runRemotely() {
if (!isDas())
return;
List remoteServers = getRemoteServers();
if (remoteServers.isEmpty())
return;
try {
ParameterMap paramMap = new ParameterMap();
paramMap.set("monitor", "true");
paramMap.set("DEFAULT", pattern);
ClusterOperationUtil.replicateCommand("get", FailurePolicy.Error, FailurePolicy.Warn,
FailurePolicy.Ignore, remoteServers, context, paramMap, habitat);
}
catch (Exception ex) {
setError(Strings.get("admin.get.monitoring.remote.error", getNames(remoteServers)));
}
}
private String prependServerDot(String s) {
// note -- we are now running in either DAS or an instance and we are going to gather up
// data ONLY for this server. I.e. the DAS dispatching has already happened.
// we really need this pattern to start with the instance-name (DAS's instance-name is "server"
// Issue#15054
// this is pretty intricate but this is what we want to happen for these samples:
// asadmin get -m network.thread-pool.totalexecutedtasks-count ==> ERROR no target
// asadmin get -m server.network.thread-pool.totalexecutedtasks-count ==> OK, return DAS's data
// asadmin get -m *.network.thread-pool.totalexecutedtasks-count ==> OK return DAS and instances' data
// asadmin get -m i1.network.thread-pool.totalexecutedtasks-count ==> OK return data for i1
final String namedot = serverEnv.getInstanceName() + ".";
if (s.startsWith(namedot))
return s;
return namedot + s;
}
private boolean validate() {
if (datareg == null) {
setError(Strings.get("admin.get.no.monitoring"));
return false;
}
if (!initPatternAndTargets())
return false;
return true;
}
/*
* VERY VERY complicated to get this right!
*/
private boolean initPatternAndTargets() {
Server das = domain.getServerNamed("server");
// no DAS in here!
List allServers = targetService.getAllInstances();
allServers.add(das);
// 0 decode special things
// \\ == literal backslash and \ is escaping next char
userarg = handleEscapes(userarg); // too complicated to do in-line
// MONDOT, SLASH should be replaced with literals
userarg = userarg.replace(MONDOT, ".").replace(SLASH, "/");
// double star makes no sense. The loop gets rid of "***", "****", etc.
while (userarg.indexOf("**") >= 0)
userarg = userarg.replace("**", "*");
// 1. nothing
// 2. *
// 3. *. --> which is a weird input but let's accept it anyway!
// 4 . --> very weird but we'll take it
if (!ok(userarg)
|| userarg.equals("*")
|| userarg.equals(".")
|| userarg.equals("*.")) {
// By definition this means ALL servers and ALL data
targets = allServers;
pattern = "*";
return true;
}
// 5. *..
// 6. *.
if (userarg.startsWith("*.")) {
targets = allServers;
// note: it can NOT be just "*." -- there is something at posn #2 !!
pattern = userarg.substring(2);
// "*.." is an error
if (pattern.startsWith(".")) {
String specificError = Strings.get("admin.get.monitoring.nodoubledot");
setError(Strings.get("admin.get.monitoring.invalidpattern", specificError));
return false;
}
return true;
}
// 7. See 14685 for an example --> "*jsp*"
// 16313 for another example
if (userarg.startsWith("*")) {
targets = allServers;
pattern = userarg;
return true;
}
// Another example:
// servername*something*
// IT 14778
// note we will NOT support serv*something getting resolved to server*something
// that's too crazy. They have to enter a reasonable name
// we are looking for, e.g. instance1*foo.goo*
// target is instance1 pattern is *foo.goo*
// instance1.something is handled below
String re = "[^\\.]+\\*.*";
if (userarg.matches(re)) {
int index = userarg.indexOf("*");
if (index < 0) { // can't happen!!
setError(Strings.get("admin.get.monitoring.invalidtarget", userarg));
return false;
}
targetName = userarg.substring(0, index);
pattern = userarg.substring(index);
}
if (targetName == null) {
int index = userarg.indexOf(".");
if (index >= 0) {
targetName = userarg.substring(0, index);
if (userarg.length() == index + 1) {
// 8. .
pattern = "*";
}
else
// 9. .
pattern = userarg.substring(index + 1);
}
else {
// no dots in userarg
// 10.
targetName = userarg;
pattern = "*";
}
}
// note that "server" is hard-coded everywhere in GF code. We're stuck with it!!
if (targetName.equals("server") || targetName.equals("server-config")) {
targets.add(das);
return true;
}
// targetName is either 1 instance or a cluster or garbage!
targets = targetService.getInstances(targetName);
if (targets.isEmpty()) {
setError(Strings.get("admin.get.monitoring.invalidtarget", userarg));
return false;
}
if (targetService.isCluster(targetName) && targets.size() > 1)
targetIsMultiInstanceCluster = true;
return true;
}
private void insertNameValuePairs(
TreeMap map, org.glassfish.flashlight.datatree.TreeNode tn1, String exactMatch) {
String name = tn1.getCompletePathName();
Object value = tn1.getValue();
if (tn1.getParent() != null) {
map.put(tn1.getParent().getCompletePathName() + DOTTED_NAME,
tn1.getParent().getCompletePathName());
}
if (value instanceof Stats) {
for (Statistic s : ((Stats) value).getStatistics()) {
String statisticName = s.getName();
if (statisticName != null) {
statisticName = s.getName().toLowerCase(Locale.getDefault());
}
addStatisticInfo(s, name + "." + statisticName, map);
}
}
else if (value instanceof Statistic) {
addStatisticInfo(value, name, map);
}
else {
map.put(name, value);
}
// IT 8985 bnevins
// Hack to get single stats. The code above above would take a lot of
// time to unwind. For development speed we just remove unwanted items
// after the fact...
if (exactMatch != null) {
NameValue nv = getIgnoreBackslash(map, exactMatch);
map.clear();
if (nv != null) {
map.put(nv.name, nv.value);
}
}
}
/*
* bnevins, 1-11-11
* Note that we can not GUESS where to put the backslash into 'pattern'.
* If so -- we could simply add it into pattern and do a get on the HashMap.
* Instead we have to get each and every key in the map, remove backslashes
* and compare.
*/
private NameValue getIgnoreBackslash(TreeMap map, String pattern) {
if (pattern == null)
return null;
Object match = map.get(pattern);
if (match != null)
return new NameValue(pattern, match);
pattern = pattern.replace("\\", "");
match = map.get(pattern);
if (match != null)
return new NameValue(pattern, match);
// No easy match...
Set elems = map.entrySet();
for (Map.Entry elem : elems) {
String key = elem.getKey().toString();
if (!ok(key))
continue;
String name = key.replace("\\", "");
if (pattern.equals(name))
return new NameValue(key, elem.getValue());
}
return null;
}
private void addStatisticInfo(Object value, String name, TreeMap map) {
Map statsMap;
// Most likely we will get the proxy of the StatisticImpl,
// reconvert that so you can access getStatisticAsMap method
if (Proxy.isProxyClass(value.getClass())) {
statsMap = ((StatisticImpl) Proxy.getInvocationHandler(value)).getStaticAsMap();
}
else {
statsMap = ((StatisticImpl) value).getStaticAsMap();
}
for (Map.Entry entry : statsMap.entrySet()) {
map.put(name + "-" + entry.getKey(), entry.getValue());
}
}
private void setError(String msg) {
reporter.setActionExitCode(FAILURE);
appendStatusMessage(msg);
clear();
}
private void setSuccess() {
reporter.setActionExitCode(SUCCESS);
}
private void appendStatusMessage(String newMessage) {
if (plainReporter != null)
cliOutput.append(newMessage).append('\n');
else {
String oldMessage = reporter.getMessage();
if (oldMessage == null)
reporter.setMessage(newMessage);
else
reporter.appendMessage("\n" + newMessage);
}
}
private boolean hasError() {
//return reporter.hasFailures();
return reporter.getActionExitCode() == FAILURE;
}
private void clear() {
targets = Collections.emptyList();
pattern = "";
}
private List getRemoteServers() {
// only call on DAS !!!
if (!isDas())
throw new RuntimeException("Internal Error"); // todo?
List notdas = new ArrayList(targets.size());
String dasName = serverEnv.getInstanceName();
for (Server server : targets) {
if (!dasName.equals(server.getName()))
notdas.add(server);
}
return notdas;
}
private boolean dasIsInList() {
return getRemoteServers().size() != targets.size();
}
private String getNames(List list) {
boolean first = true;
StringBuilder sb = new StringBuilder();
for (Server server : list) {
if (first)
first = false;
else
sb.append(", ");
sb.append(server.getName());
}
return sb.toString();
}
private static String handleEscapes(String s) {
// replace double backslash with backslash
// simply remove single backslash
// there is probably a much better, and very very complicated way to do
// this with regexp. I don't care - it is only done once for each time
// a user runs a get -m comand.
final String UNLIKELY_STRING = "___~~~~$$$$___";
return s.replace("\\\\", UNLIKELY_STRING).replace("\\", "").replace(UNLIKELY_STRING, "\\");
}
private boolean isDas() {
return serverEnv.isDas();
}
/*
* Surprise! The variables are down here. All the variables are private.
* That means they are an implementation detail and are hidden at the bottom
* of the file.
*/
List targets = new ArrayList();
private PlainTextActionReporter plainReporter;
private ActionReporter reporter;
private AdminCommandContext context;
private String pattern;
private String userarg;
@Inject
@Optional
private MonitoringRuntimeDataRegistry datareg;
@Inject
private Domain domain;
@Inject
private Target targetService;
@Inject
ServerEnvironment serverEnv;
@Inject
ServiceLocator habitat;
private OutputType outputType;
private final static String DOTTED_NAME = ".dotted-name";
private final StringBuilder cliOutput = new StringBuilder();
private boolean targetIsMultiInstanceCluster = false;
private String targetName;
private Boolean aggregateDataOnly = Boolean.FALSE;
private static class NameValue {
String name;
Object value;
private NameValue(String s, Object o) {
name = s;
value = o;
}
}
}